A223523
identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.
-
A161198 → basis A008277
(match triangle)
1 · 3, 2 · 15, 20, 4 · 105, 210, 84, 8 … row sums 1, 5, 39, 407, 5281, 81597, 1459015, …